Error Code P049E: What It Means & What To Do?
OBD Code P049E - Exhaust Gas Recirculation "B" Control Position Exceeded Learning Limit
The
Exhaust Gas Recirculation or EGR have the function of reducing the combustions
temperature, and in-turn reducing emissions. The code P049E will be set if the
engine control module ECM detects that the EGR isn’t operated as needed.
Learn More About OBD Error Code P049E
In
the OBD Error P049F, the EGR system uses a step motor to control the flow rate
of EGR from the exhaust manifold. This is truer in recently built vehicles. The
motor has four different phases, wherein it conducts different functions to
perform perfectly. In the first winding phase it operates as per the signal of
the ECM regarding the output pulse. Two windings are turned ON and OFF,
consecutively, when it is ON the valve opens or closes, which changes the flow
rate. If there is no change in the flow rate required, the ECM automatically
doesn’t issue any pulse signal. The vales remain at the particular opening,
when a certain voltage signal is issued.
What
causes this problem with Exhaust Gas Recirculation ‘B’ Control Position
Exceeded Learning Limit?
- A
Defect in the EGR valve
- EGR
sensor may be faulty
- An
error in the programming of the PCM or a poor PCM
Replace/Repair These Parts To Fix OBD Code P049E
- Exhaust Gas
Recirculation - It is a fundamental
part of a diesel engine vehicle. It controls the emissions of Nitrogen oxide,
if it’s underperforming, then it will have to be either repaired or replaced.
- EGR Valve - Vehicles will not pass
nitrogen emissions if the valve is faulty, replace yours with overnight
shipping with an urgent order at Parts Avatar.
- Engine Control
Module - The PCM is the brain of
your vehicle, and hence there should be no compromise on its functioning.
Replace yours from Parts Avatar through our easy search option and discounts.
- Vacuum Switching
Valve - The VSV plays a crucial
role in controlling a fixed air bleed into the intake manifold. If it’s not
performing in order, try to repair or replace it.
- EGR Solenoid - One of the main
culprits for the OBD Code P049E is a malfunctioning EGR solenoid. Find the
perfect one for your vehicle and replace it.
- EGR Vacuum - An incompetent EGR
vacuum will not be able to function as per needed. Check for leaks or poor
functioning for repairing it or replacement.
- Exhaust manifold - Performs a significant
function in your vehicle by collecting all the exhaust gasses. A leak or poor
functioning of it can cause a lot of damage to your vehicle. Try repairing it,
and if needed purchase a new one and be safe.
Symptoms Of OBD Error Code P049E
Knowing the symptoms can help you
sort out the OBD Code P049F. Parts Avatar has made it easy for you by listing
the common symptoms for your convenience. Read on to know more:
Common Symptoms
- Diminished performance of the
engine
- Increase in the consumption of
fuel than normal
How To Correct P049E Exhaust Gas Recirculation "B" Control Position Exceeded Learning Limit
There is one major way you can
correct the OBD Code P0496E
- Replace your EGR Valve
You can find the EGR Valve that fits your specific vehicle on Parts Avatar easily, if you have any doubts you can simply chat with your online customer care support.
Easy Diagnosis Of Engine Error OBD Code P049E
Diagnosing your OBD code error can become
a nightmare, but we simplify it for you in simple steps, read on to know more.
- Start off your OBE Code P049F diagnosis by
first locating the vehicle diagnostic
connector. Retrieve the codes that are all saved with the
scanner. You need this information for diagnostic reasons, so it’s important
that it is recorded correctly. Test-drive your vehicle to see if the code shows
up again or not.
- The Technical Service Bulletins (TSB) of
your respective vehicles will have plenty information regarding various codes
as per vehicle and symptoms exhibited. You may be able to find a solution to
you EGR system problems there. The TSB entries are thorough, and are derived
from repair specialists. They contain helpful diagnostic tips.
- Now use a diagnostic scanner, a digital
Volt/ohm meter (DVOM) and a trustworthy source of vehicle information. Doing a
visual inspection for the EGR valve and all the wiring and connectors related
to it has to be done next.
- Observe closely the wiring harnesses
routed near hot exhaust manifolds. Also, focus on the jagged edges often linked
with exhaust shields.
Common Mistakes When Diagnosing the P049E Code
- Failure of the EGR valve
- Failed Powertrain
Control Module (PCM)
- Issue with the wiring